    package com.example.lifecycle;

    import org.springframework.beans.factory.BeanNameAware;
    import org.springframework.stereotype.Component;
    import javax.annotation.PostConstruct;
    import javax.annotation.PreDestroy;
    @Component
    public class BeanLifeComponent implements BeanNameAware {
        @PostConstruct
        public void postConstruct() {
            System.out.println("执行 PostConstruct()");
        }
        public void init() {
            System.out.println("执行 BeanLifeComponent init-method");
        }
        @PreDestroy
        public void preDestroy() {
            System.out.println("执行：preDestroy()");
        }
        public void setBeanName(String s) {
            System.out.println("执行了 setBeanName 方法：" + s);
        }
    }